To study and review grammar, check these out.

• Step by step guide how to create present tense forms of U-verbs (sportuju): here.
• Step by step guide how to create present tense forms of M-verbs (dělám – kouřím – myslím): zde.

More about verbs: yellow book, p. 35 (just note that there -- in the book -- there are 4 basic types of verbs, not just 2: these Á-verbs and Í-verbs are what I call M-verbs; and those regular E-verbs and irregular E-verbs are my U-verbs).

List of verbs: check Lesson 3 vocabulary.

• Kolik je hodin? – Answers.
• V kolik hodin? Kdy? – Answers.